/*
 * Copyright (c) 2017, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 * WSO2 Inc. licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file except
 * in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

function onRequest(context) {
	var log = new Log("stats.js");
	var carbonServer = require("carbon").server;
	var device = context.unit.params.device;
	var devicemgtProps = require("/app/modules/conf-reader/main.js")["conf"];
	var constants = require("/app/modules/constants.js");
	var websocketEndpoint = devicemgtProps["wssURL"].replace("https", "wss");
	var jwtService = carbonServer.osgiService(
		'org.wso2.carbon.identity.jwt.client.extension.service.JWTClientManagerService');
	var jwtClient = jwtService.getJWTClient();
	var encodedClientKeys = session.get(constants["ENCODED_TENANT_BASED_WEB_SOCKET_CLIENT_CREDENTIALS"]);
	var token = "";
	if (encodedClientKeys) {
		var tokenUtil = require("/app/modules/oauth/token-handler-utils.js")["utils"];
		var resp = tokenUtil.decode(encodedClientKeys).split(":");
		var tokenPair = jwtClient.getAccessToken(resp[0], resp[1], context.user.username,"default", {});
		if (tokenPair) {
			token = tokenPair.accessToken;
		}
		var websocketToken= {'name':'websocket-token','value': token, 'path':'/', "maxAge":18000};
		response.addCookie(websocketToken);
	}
	var websocketEndpointForStream1 = websocketEndpoint + "/secured-websocket/org.wso2.iot.devices.sensor_temp/1.0.0?deviceId="
	    + device.deviceIdentifier + "&deviceType=" + device.type + "&websocketToken=" + token;

	return {
		"device": device,
		"websocketEndpointForStream1": websocketEndpointForStream1

	};
}